Kyousuke has been arrested. Hagiwara Sakutarou, Nomura Kodou, and the others gather at the "milk hall," a small cafe serving European beverages and foods, to try to discover the truth of the situation. Each of the literary men unveil their deductions. Natsume Souseki introduces Akutagawa Ryuunosuke who also participates in the puzzle solving, but none of them come up with a deciding theory. As they ponder, a boy named Hirai Tarou steps forward. Hirai tells them that everything started two nights ago...
The man Kindaichi saw is
 the madam's young lover!
الرّجُل الذي رآه كيندايتشي هو عشيق
شابّ لمُديرة بيت الدّعارة
Ese hombre era el amante de la dueña.
Ese hombre era el amante de la dueña.
Kindaichi a vu
l’amant de la patronne !
L'uomo che Kindaichi ha visto
è il giovane amante della padrona!
O homem que o Kindaichi viu
era o jovem amante da dona!
Мужчина, которого видел Киндайти, —
молодой любовник хозяйки!